Chapter 1 Flashcards
HTTP, IMAP4, FTP, and Telnet are all examples of protocols that operate at what layer of the OSI model? A) Layer 4 B) Layer 5 C) Layer 6 D) Layer 7
D) Layer 7
What layer of the OSI model describes how data between applications is synced and recovered if messages don't arrive intact at the receiving application? A) Application Layer B) Presentation Layer C) Session Layer D) Transport Layer
C) Session Layer
What is the name of the protocol data unit (PDU) of the Data Link layer? A) Packet B) Data C) Bit D) Frame
D) Frame
The segment or datagram protocol data unit exists at what layer of the OSI model? A) Application Layer B) Transport Layer C) Network Layer D) Data Link Layer
B) Transport Layer
In what network topology are devices daisy-chained together in a single line? A) Bus Topology B) Star Topology C) Star Bus Topology D) Ring Topology
A) Bus Topology
What physical network topology consists of all connected devices connecting to one central device, such as a switch? A) Bus Topology B) Ring Topology C) Hub Topology D) Star Topology
D) Star Topology
The device where a telecommunications service provider network ends and an organization's network begins is referred to as what option below? A) Demarc B) Last Mile C) Local Loop D) Point of No Return
A) Demarc
The proper handling procedures for substances such as chemical solvents are typically outlined in which of the following options?
A) Toxic Chemical Safety Procedure (TCSP)
B) Dangerous and Hazardous Waste Disposal Sheet (DHWDS)
C) Environmental Chemical Hazard Sheet (ECHS)
D) Material Safety Data Sheet (MSDS)
D) Material Safety Data Sheet (MSDS)
An open electrical circuit as a result of a failed circuit breaker is considered to be what type of failure system? A) Fail-open B) Fail-close C) Fail-tolerant D) Fail-dynamic
B) Fail-close
A standard network switch operates at what layer of the OSI model? A) Layer 5 B) Layer 2 C) Layer 3 D) Layer 7
B) Layer 2
Which of the following is not one of the disadvantages of peer-to-peer networks?
A) They lack scalability
B) They are not necessarily secure
C) They are impractical for connecting large numbers of computers
D) They centralize user account logins
D) They centralize user account logins
Using the same network to deliver multiple types of communications services, such as video, voice, and fax is known as: A) Multi-faceted networking B) Convergence C) Multiplexing D) Unified Networking
B) Convergence
At what layer of the OSI model do the IP, ICMP, and ARP protocols operate? A) Application B) Session C) Transport D) Network
D) Network
Select the layer of the OSI model that is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read: A) Application B) Presentation C) Session D) Transport
B) Presentation
If a Network layer protocol is aware that a packet is larger than the maximum size for its network, it will divide the packet into smaller packets in a process known as: A) De-encapsulation B) Fragmentation C) Packet Splitting D) Framing
B) Fragmentation
